C++ impact and status on Exercism

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

144,547

Submissions

1,924,425

Mentoring Discussions

13,329

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

19 concepts being taught

Includes

8,459 learnt

Strings

8,459 learnt

Basics

15,421 learnt

Numbers

6,308 learnt

Namespaces

10,018 learnt

Booleans

10,361 learnt

Comparisons

5,359 learnt

If Statements

5,359 learnt

Arrays and Vectors

3,183 learnt

Loops

4,385 learnt

Classes

3,737 learnt

References

2,452 learnt

Enumerations

2,756 learnt

Switch Statements

2,756 learnt

Headers

1,795 learnt

Functions

1,267 learnt

Auto

326 learnt

Smart Pointers

326 learnt

Pointers

596 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

12,211

89,416 (avg. 7.3)

8,459 (69.3%)

234 (1.9%)

Lasagna

21,413

89,234 (avg. 4.2)

15,421 (72.0%)

258 (1.2%)

Freelancer Rates

7,158

61,919 (avg. 8.7)

6,308 (88.1%)

78 (1.1%)

Last Will

12,126

67,737 (avg. 5.6)

10,018 (82.6%)

132 (1.1%)

Pacman Rules

11,399

60,949 (avg. 5.3)

10,361 (90.9%)

114 (1.0%)

Vehicle Purchase

5,671

36,239 (avg. 6.4)

5,359 (94.5%)

48 (0.8%)

Making the Grade

3,861

63,638 (avg. 16.5)

3,183 (82.4%)

103 (2.7%)

Interest is interesting

4,746

34,413 (avg. 7.3)

4,385 (92.4%)

48 (1.0%)

Ellen's Alien Game

4,079

30,332 (avg. 7.4)

3,737 (91.6%)

51 (1.3%)

Election Day

2,719

29,814 (avg. 11.0)

2,452 (90.2%)

43 (1.6%)

Troll the Trolls

3,063

28,909 (avg. 9.4)

2,756 (90.0%)

67 (2.2%)

Doctor Data

2,296

32,302 (avg. 14.1)

1,795 (78.2%)

47 (2.0%)

lasagna-master

1,500

20,453 (avg. 13.6)

1,267 (84.5%)

23 (1.5%)

Power of Troy

435

5,317 (avg. 12.2)

326 (74.9%)

4 (0.9%)

Speedywagon Foundation

738

6,600 (avg. 8.9)

596 (80.8%)

7 (0.9%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: ec14dfa38859bfb5743e287759ac7e7947c52e05 (Updates should be instant)

Next goal: Implement 139 practice exercises. Find out more.

84 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

108,834

289,768 (avg. 2.7)

55,908 (51.4%)

12 (0.0%)

Leap

24,498

102,902 (avg. 4.2)

12,968 (52.9%)

2,536 (10.4%)

Reverse String

14,010

91,302 (avg. 6.5)

9,057 (64.6%)

1,516 (10.8%)

Space Age

9,029

69,837 (avg. 7.7)

4,408 (48.8%)

1,152 (12.8%)

Triangle

6,116

43,775 (avg. 7.2)

3,656 (59.8%)

778 (12.7%)

Grains

4,215

29,114 (avg. 6.9)

3,365 (79.8%)

607 (14.4%)

Raindrops

7,806

54,810 (avg. 7.0)

6,322 (81.0%)

668 (8.6%)

Pangram

3,419

24,648 (avg. 7.2)

2,725 (79.7%)

496 (14.5%)

Two-Fer

3,189

12,860 (avg. 4.0)

2,635 (82.6%)

88 (2.8%)

Grade School

3,466

32,293 (avg. 9.3)

2,244 (64.7%)

236 (6.8%)

Hamming

4,958

14,805 (avg. 3.0)

4,021 (81.1%)

368 (7.4%)

Nucleotide Count

3,404

17,871 (avg. 5.3)

2,525 (74.2%)

285 (8.4%)

RNA Transcription

2,682

13,799 (avg. 5.1)

2,199 (82.0%)

174 (6.5%)

Collatz Conjecture

2,244

10,371 (avg. 4.6)

1,890 (84.2%)

56 (2.5%)

Difference of Squares

3,904

13,092 (avg. 3.4)

3,417 (87.5%)

184 (4.7%)

Nth Prime

2,532

17,215 (avg. 6.8)

1,689 (66.7%)

141 (5.6%)

Queen Attack

2,175

17,528 (avg. 8.1)

1,423 (65.4%)

117 (5.4%)

Sieve

2,118

12,435 (avg. 5.9)

1,700 (80.3%)

133 (6.3%)

Say

1,775

16,013 (avg. 9.0)

980 (55.2%)

126 (7.1%)

Gigasecond

3,026

6,408 (avg. 2.1)

2,067 (68.3%)

258 (8.5%)

Secret Handshake

1,469

7,725 (avg. 5.3)

1,200 (81.7%)

54 (3.7%)

Allergies

2,575

18,817 (avg. 7.3)

1,649 (64.0%)

97 (3.8%)

Protein Translation

1,644

10,913 (avg. 6.6)

1,360 (82.7%)

58 (3.5%)

Sum of Multiples

1,807

6,940 (avg. 3.8)

1,387 (76.8%)

73 (4.0%)

Prime Factors

1,619

6,695 (avg. 4.1)

1,310 (80.9%)

51 (3.2%)

Robot Name

1,726

12,014 (avg. 7.0)

1,191 (69.0%)

118 (6.8%)

Clock

1,297

7,906 (avg. 6.1)

743 (57.3%)

54 (4.2%)

Meetup

1,003

3,877 (avg. 3.9)

555 (55.3%)

25 (2.5%)

Beer Song

1,066

6,679 (avg. 6.3)

806 (75.6%)

35 (3.3%)

Atbash Cipher

2,307

36,648 (avg. 15.9)

1,712 (74.2%)

113 (4.9%)

Trinary

2,032

14,371 (avg. 7.1)

1,761 (86.7%)

42 (2.1%)

Binary Search

1,307

9,589 (avg. 7.3)

892 (68.2%)

43 (3.3%)

Phone Number

1,185

6,258 (avg. 5.3)

847 (71.5%)

42 (3.5%)

Series

919

3,940 (avg. 4.3)

711 (77.4%)

24 (2.6%)

Complex Numbers

1,181

7,071 (avg. 6.0)

732 (62.0%)

26 (2.2%)

Food Chain

1,036

3,272 (avg. 3.2)

743 (71.7%)

28 (2.7%)

Roman Numerals

960

3,782 (avg. 3.9)

714 (74.4%)

24 (2.5%)

Bob

3,212

23,528 (avg. 7.3)

2,586 (80.5%)

275 (8.6%)

Word Count

1,517

6,249 (avg. 4.1)

1,142 (75.3%)

93 (6.1%)

Circular Buffer

978

7,674 (avg. 7.8)

571 (58.4%)

45 (4.6%)

Crypto Square

795

5,943 (avg. 7.5)

531 (66.8%)

22 (2.8%)

ETL

1,484

3,679 (avg. 2.5)

1,203 (81.1%)

43 (2.9%)

Matching Brackets

1,314

8,430 (avg. 6.4)

1,052 (80.1%)

37 (2.8%)

Anagram

1,654

5,120 (avg. 3.1)

1,279 (77.3%)

97 (5.9%)

Binary Search Tree

1,201

6,146 (avg. 5.1)

394 (32.8%)

46 (3.8%)

Luhn

1,643

17,882 (avg. 10.9)

1,339 (81.5%)

64 (3.9%)

Acronym

1,051

4,653 (avg. 4.4)

806 (76.7%)

30 (2.9%)

Armstrong Numbers

1,639

7,640 (avg. 4.7)

1,427 (87.1%)

34 (2.1%)

Binary

1,321

5,007 (avg. 3.8)

1,054 (79.8%)

84 (6.4%)

Hexadecimal

1,580

7,733 (avg. 4.9)

1,341 (84.9%)

79 (5.0%)

Isogram

2,527

4,942 (avg. 2.0)

1,625 (64.3%)

100 (4.0%)

Pascal's Triangle

919

3,446 (avg. 3.7)

704 (76.6%)

25 (2.7%)

Perfect Numbers

408

2,562 (avg. 6.3)

342 (83.8%)

6 (1.5%)

Scrabble Score

1,266

3,642 (avg. 2.9)

971 (76.7%)

90 (7.1%)

All Your Base

907

5,314 (avg. 5.9)

612 (67.5%)

48 (5.3%)

Robot Simulator

1,303

5,274 (avg. 4.0)

741 (56.9%)

54 (4.1%)

Bank Account

681

2,926 (avg. 4.3)

333 (48.9%)

39 (5.7%)

Darts

2,280

14,815 (avg. 6.5)

2,014 (88.3%)

31 (1.4%)

Largest Series Product

377

2,542 (avg. 6.7)

286 (75.9%)

10 (2.7%)

ISBN Verifier

533

3,814 (avg. 7.2)

409 (76.7%)

13 (2.4%)

Linked List

242

2,232 (avg. 9.2)

138 (57.0%)

11 (4.5%)

Simple Linked List

718

5,862 (avg. 8.2)

454 (63.2%)

19 (2.6%)

High Scores

649

5,386 (avg. 8.3)

572 (88.1%)

12 (1.8%)

Eliud's Eggs

784

3,166 (avg. 4.0)

707 (90.2%)

13 (1.7%)

Diamond

224

1,705 (avg. 7.6)

172 (76.8%)

4 (1.8%)

Run-Length Encoding

249

2,641 (avg. 10.6)

195 (78.3%)

5 (2.0%)

Rotational Cipher

808

5,971 (avg. 7.4)

721 (89.2%)

15 (1.9%)

Resistor Color

266

1,465 (avg. 5.5)

216 (81.2%)

4 (1.5%)

Resistor Color Duo

245

1,118 (avg. 4.6)

203 (82.9%)

2 (0.8%)

Minesweeper

207

1,190 (avg. 5.7)

135 (65.2%)

2 (1.0%)

Sublist

168

1,332 (avg. 7.9)

109 (64.9%)

4 (2.4%)

Zebra Puzzle

157

723 (avg. 4.6)

64 (40.8%)

5 (3.2%)

List Ops

198

2,153 (avg. 10.9)

115 (58.1%)

4 (2.0%)

Knapsack

154

1,217 (avg. 7.9)

93 (60.4%)

2 (1.3%)

Two Bucket

147

944 (avg. 6.4)

76 (51.7%)

2 (1.4%)

Yacht

194

1,878 (avg. 9.7)

137 (70.6%)

0 (0.0%)

Kindergarten Garden

576

4,795 (avg. 8.3)

432 (75.0%)

14 (2.4%)

D&D Character

262

1,777 (avg. 6.8)

172 (65.6%)

3 (1.1%)

Spiral Matrix

167

1,131 (avg. 6.8)

101 (60.5%)

4 (2.4%)

Parallel Letter Frequency

204

903 (avg. 4.4)

104 (51.0%)

5 (2.5%)

Pig Latin

189

1,648 (avg. 8.7)

95 (50.3%)

4 (2.1%)

Rail Fence Cipher

132

1,016 (avg. 7.7)

75 (56.8%)

3 (2.3%)

Affine Cipher

195 (avg. 9.3)

12 (57.1%)

1 (4.8%)

Alphametics

401 (avg. 12.2)

7 (21.2%)

0 (0.0%)

55 unimplemented practice exercises

Baffling Birthdays

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Intergalactic Transmission

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Piecing It Together

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Relative Distance

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Split-Second Stopwatch

Square Root

State of Tic-Tac-Toe

Strain

Swift Scheduling

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

View data

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: fa924a0b0728c894eacbeabe6b9656ec62416b66 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,885,813

Test Run Pass Rate

16.4% (309469)

Test Run Fail Rate

24.7% (464857)

Test Run Error Rate

58.9% (1111487)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 29eab0a802586f7bc346f598a1ca98a74deb7547 (Takes up to 10 mins to deploy)

Total Representer Runs

328,343

Total Representation Comments Made

57,047

Feedback Given Frequency

17.4%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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